LOUISVILLE -Stephen Got Even and the filly Three Ring, neither of whom has raced in the last month, had major tune-ups yesterday morning at Churchill Downs for Saturday’s Kentucky Derby. Answer Lively, Kimberlite Pipe and Desert Hero also worked while champion Silverbulletday prepped for Friday’s Kentucky Oaks.

Stephen Got Even, who along with Adonis gives trainer Nick Zito a good chance to notch his third Derby victory but first in five years, had two-time Derby-winning Chris McCarron on his back when he breezed five furlongs in a leisurely 1:02.2.

“I was impressed,” said McCarron, who rode the colt for the first time. “Obviously we weren’t looking for ‘fast.’ This was a ‘get acquainted with Chris’ move.”

Three Ring, who would become just the fourth filly to win the Derby in its 125-year history, went out just as the sun was rising about 6:30 to work five furlongs in 1:01.2 wearing blinkers. The good-looking chestnut with a white blaze and three white socks went her first quarter in :24, the half in :49 and came home the final eighth in :12.1, then galloped out three-quarters in 1:14.

Answer Lively, who clinched last year’s 2-year-old championship by taking the Breeders’ Cup Juvenile at Churchill, went five furlongs in 1:01.2 and now will just gallop up to the Derby.

Kimberlite Pipe, whose trainer Dallas Stewart took a trick from the playbook of his former mentor D. Wayne Lukas by working the colt before dawn, went an even five furlongs in 1:00, galloping out another eighth in 1:14.

Desert Hero is one of the most inexperienced horses in the field with three starts. The son of ’93 Derby winner Sea Hero worked six furlongs in 1:14.

“I think the track might have been on the slow side,” Desert Hero’s trainer Dick Mandella said. But Silverbulletday, who continues to train splendidly for Bob Baffert, made it look fast, gunning six furlongs for the Oaks in 1:12.2.